Pin Assignments - SATO CG412DT Service Manual

Section 3: Interface Specifications
3.2 RS232C HIGH SPEED SERIAL INTERFACE (cont'd)
3.2.3 X-ON/X-OFF
This transmission protocol informs the host if the printer is ready to receive data, by sending the "XON" (Hex
11H) or "XOFF" (Hex 13H) code.
When the print data (STX ESC+"A"~ ESC+"Z" ETX) is sent from the host in the conditions below, received
data may be incorrect.
1) When the printer is Offline
2) When an error has occurred in the printer

Pin Assignments

1) Host with DB-25P terminal
Printer
RD 2
SD 3
SG 5
Note:
Depending on the host used, it may need to loop CS and RS (maintaining at "High" level) on the host side.
Therefore, make sure to re-check the host before use.
Input/Output Signals
Pin no. Signal Type
2
3
5
Timing Chart (Multi item buffer)
(1) Normal process
Power ON
Printer side
Initial XON
SD
500ms
RD
Printer status
(2) Error process
Head open
Printer side
XOFF
SD
RD
Online
Printer status
* When the paper end has occurred, Open the head
NOTE: When the head is closed, the paper end will be released.
Page 3-6
Host
2 SD
3 RD
7 SG
Direction
RD Input
SD Output
SG -
XON
STX..ETX(2)
STX..ETX(1)
Receiving/Analysis/
Receiving/Analysis/
Editing(1) Editing(2)
NOTE: In this protocol, executing the polling of "XON" at intervals of 500ms from the power supply to the first data reception.
Press the
Head close
FEED/LINE button
XON
STX ........ ETX(1)
Offline
Receiving/Analysis/Editing(1)
Data reception during the error ocurrence executes the transmission of "XOFF"
2) Host with DB-9P terminal
Printer
RD
SD
SG
Data transferred from the host to the printer
Data transferred from the printer to the host
Signal ground
Receive buffer Receive buffer
near full occurred near full released
XOFF
XON
Online
Print(1)
Paper end occurred
STX ........
Online
Receiving/Analysis/Editing(2)
Print(1)
Reset the label Close the head for feed operation.
2 3
3 2
5 5
Description
Press the
FEED/LINE button
XOFF
STX..ETX(3) STX.......ETX(4)
Receiving/Analysis/ Receiving/Analysis/Editing(4)
Editing(3)
Print(2)
Press the
FEED/LINE button
XOFF XON
XOFF
ETX(2)
Offline
*
CG4 Series Service Manual
Host
SD
RD
SG
Press the
FEED/LINE button
XON
Offline
Print(3)
Online
Print(1)